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> Could anyone explain how the git commit ID will include all the files
> that devloper makes changes on?
>
> How git commit ID works?
In short, a Git commit points to a tree object that describes the full
state of the source tree plus metadata like the commit author, date,
description, and a pointer to the commit object(s) that preceded the
commit. The commit id itself is the SHA-1 of the contents of the commit
object. Any change of the source tree will affect the top-level tree
object's SHA-1 which in turn affects the SHA-1 of the commit. Also,
because a commit contains the timestamp of the commit object's creation
even two commits that are content-wise identical will have different
SHA-1s.
If you haven't read it, the Pro Git books explains Git's object model in
detail: http://git-scm.com/book/en/Git-Internals-Git-Objects
That description is quite detailed, and most users don't need to go that
deep.
--
Magnus Bäck
ba...@google.com
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